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Finding the Fourth Proportional to 250,935.84, 346,287.15 and 137,757.78

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Solution

The fourth proportional to 250,935.84, 346,287.15 and 137,757.78 is: 190,103.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,935.84 : 346,287.15 = 137,757.78 : x
  2. Step 2: Convert to fraction form
    250,935.84/346,287.15 = 137,757.78/x
  3. Step 3: Cross multiply
    250,935.84x = 346,287.15 × 137,757.78
  4. Step 4: Simplify right side
    250,935.84x = 47,703,749,026.53
  5. Step 5: Solve for x
    x = 47,703,749,026.53/250,935.84
  6. Step 6: Final answer
    x = 190,103.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.